TREATMENT METHOD AND TREATMENT SYSTEM FOR POLLUTED WATER AND ORGANIC EXHAUST GAS

摘要

PROBLEM TO BE SOLVED: To efficiently separate/remove organic emission gases from a polluted water and to render the polluted water harmless by improving the contact probability of the polluted water and air.

SOLUTION: The system is so constituted that the main jet of the polluted water gushed out of a spray nozzle to a jet box 7 of a jet type aerator 1 is jetted perpendicularly upward in the direction of the approximate central line of an internal space V in a perpendicular direction. Also, attached vortexes which are low-pressure vortexes are generated by a Coanda effect a the eight corners of the jet box 7 so that the attached jets are generated in the main jet. The gas is separated from the water by using such jets and the separated organic exhaust gas is introduced to a photocatalyst apparatus 2 which has a UV irradiation source 52 and a photocatalyst medium 53 consisting of mirror finished aluminum and subjects the exhaust gas to photoirradiation to render the gas harmless. Further, the organic emission gas rendered harmless is refluxed to the jet box 7 and recycled. As a result, the purification system integrated from the polluted water to rendering of the organic exhaust gas completely harmless is obtained.

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